STMicroelectronics STM32L082KZT6

Overview

STM32L082KZT6 from STMicroelectronics is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller with 192 KB Flash, 20 KB SRAM, and 6 KB EEPROM; features USB 2.0 (crystal-less), dual 12-bit DACs, 12-bit ADC (1.14 Msps), AES-128 hardware encryption, and operates from 1.65–3.6 V across –40 to +125 °C. It targets battery-powered IoT sensors, portable medical devices, and smart metering endpoints requiring long runtime and secure firmware updates.

For engineers reviewing the STM32L082KZT6 datasheet, STM32L082KZT6 pinout, STM32L082KZT6 application, or STM32L082KZT6 equivalent, key selection criteria include standby current (0.29 µA), USB crystal-less operation, 125 °C extended temperature rating, ECC-protected Flash/SRAM/EEPROM, and integrated true RNG for secure boot.

Technical Context

The STM32L082KZT6 implements a dual-bank Flash architecture with read-while-write capability and ECC protection, enabling safe over-the-air firmware updates without halting execution. Its clock system integrates factory-trimmed 16 MHz HSI, self-calibrating 48 MHz HSI48 for USB, and low-power 37 kHz LSI - all managed via programmable voltage detector (PVD) and ultra-low-power BOR with five thresholds.

Analog subsystem includes two buffered 12-bit DACs (operable down to 1.8 V), a 12-bit ADC with 13 channels and 1.14 Msps sampling (down to 1.65 V), and two ultra-low-power comparators with window mode and wake-up capability - all sharing common reference voltage and calibration registers for consistent sensor signal chain accuracy.

Key Specifications

Pinout & Package

STM32L082KZT6 is housed in a 32-pin UFQFPN package (5 × 5 mm, 0.5 mm pitch), optimized for space-constrained PCB layouts while maintaining thermal performance and reflow compatibility.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM32L072KZT6, the STM32L082KZT6 adds USB and 64 KB more Flash without increasing package size or standby current; versus STM32L432KCU6, it trades DSP capability for superior low-power efficiency and EEPROM-based nonvolatile data storage.

Availability

STM32L082KZT6 is available at Aetrix Electronics and suitable for smart utility metering, portable medical sensors, and industrial wireless sensor nodes requiring stable component supply across extended product lifecycles.

Supply support for STM32L082KZT6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, MEMS, and automotive semiconductors since 1987.

The STM32L0 series targets ultra-low-power embedded applications demanding extended battery life, secure firmware execution, and rich analog integration - optimized for IoT edge nodes and energy-harvesting systems.

FAQ

What is the maximum operating frequency and core type of the STM32L082KZT6?

The STM32L082KZT6 features an Arm Cortex-M0+ core rated for up to 32 MHz operation, delivering 0.95 DMIPS per MHz. It supports dynamic voltage scaling to maintain performance across its 1.65–3.6 V supply range, with factory-trimmed 16 MHz HSI and self-calibrating 48 MHz HSI48 for USB timing - all verified in DS10688 Rev 7 Section 3.3 and Table 48.

Does the STM32L082KZT6 support crystal-less USB operation?

Yes - the STM32L082KZT6 integrates a self-calibrating 48 MHz HSI48 oscillator synchronized to USB Start-of-Frame (SOF) tokens, enabling full-speed USB 2.0 communication without an external crystal. This is documented in Section 3.18.5 and electrical characteristics Table 75 of DS10688 Rev 7.

How much EEPROM does the STM32L082KZT6 include, and what is its endurance?

The STM32L082KZT6 includes 6 KB of data EEPROM with built-in ECC protection, rated for 100,000 write/erase cycles and 20-year data retention at 55 °C (DS10688 Rev 7, Table 51). It supports byte/word programming and sector erase, accessible via dedicated HAL drivers.

What are the key low-power modes and their typical current consumption values?

The STM32L082KZT6 offers Standby (0.29 µA), Stop (0.43 µA), and Stop+RTC+20KB RAM retention (0.86 µA) modes - all measured at 3.0 V and 25 °C (DS10688 Rev 7, Tables 34–35). Wake-up time from Stop is 5 µs from Flash, enabling rapid response to sensor interrupts while preserving energy.